Improvement in key-fasteners



S. A.HD.A DLEY.

KEY-FASTENER.

Patented 0ct.10. 1876.

.-JAME.S F 086000 8'. CO BOSTON UNITED STATES PATENT OFFICE.

STEPHEN A. HOADLEY, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO REYNOLDS 82;CO., OF SAME PLACE.

IMPROVEMENT IN KEY-FASTENERS.

Specification forming part of Letters Patent No. 183,168, dated October10, 1876; application filed September 15, 1876.

To all whom it may concern:

Be it known that LSTEPHEN A. HOADLEY, of New Haven, in the county of NewHaven and State of Connecticut, have invented a new Improvement in Key-Fasteners; and I do hereby declare the following, when taken inconnection with the accompanying drawings and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in-

Figure 1, a perspective view of the fastener; Fig. 2, its application;Fig. 3, a 1ongitudinal section and in Fig. 4, a modification of thesame.

This invention relates to a device to prevent a door-key being turned inthe look from the opposite side to which the key is inserted.

The invention consists of a bar to be inserted into the key-hole,combined with a transverse hook or arm to engage the spindle of the key,and means for securing the said hook when so engaged, as more fullyhereinafter described.

A is the bar, which is made of such dimensions that it may easily beintroduced into the key-hole below the spindle of the key, and while thekey remains in the lock. The outer end of this bar is constructed with athreaded spindle, a, and over this a hook, B, is placed, the plane ofthe hook being transverse to the plane of the bar, and the hook arrangedto turn freely on the spindle. Outside this hook B anut, C, is placed,so as to be turned against the hook and bind it hard against theshoulderd on the bar. This completes the article.

To secure and prevent the turning of the key, the bar A is introducedinto the key-hole below the spindle of the key, and after the key hasbeen turned to lock the door, then the hook B is turned up over thespindleD of the key, as seen in Fig. 2, and the nut screwed up hardagainst the face of the hook, so as to bind it firmly in that position.The hold of this hook upon the key-spindle is sufficient to prevent itsremoval from the spindle; hence the bar A cannot be removed from thekeyhole, and consequently the key cannot be turned while the parts arein that condition; but by loosening the nut the hook may be turned fromthe spindle of the key and the bar removed; but this can only be done onthe side of the door where the fastener is inserted.

Instead of a single hook, B, two books, B B, may be employed, as seen inFig. 4, to grasp the spindle upon opposite sides, and in that case thehooks may be made of less extent than where a single hook is used.

I claim-- The herein-described key-fastener, consisting of the bar A,with a hook arranged to turn in a plane transverse to the said bar,combined with a clamping device to hold the said hook when engaged withthe key-spindle, substantially as set forth.

STEPHEN A. HOADLEY.

Witnesses JOHN E. EARLE, CLARA BROUGHTON.

